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![[With FAQ] How a Screw is Made](https://image.mono.ipros.com/public/product/image/828/2001516549/IPROS9113793114406579409.jpg?w=280&h=280)
[With FAQ] How a Screw is Made
Screws are used in all kinds of products that support daily life, but do you know how they are manufactured? The material for screws is wire made of metal that is rolled into coils. In the first half, we will introduce the process of how screws are made from this wire, and in the second half, we will provide some trivia about screws (Q&A).
Essential Knowledge About Screws!
This time, we would like to share some basic knowledge about screws that we hope everyone will find useful! Please take a look, and if you have any questions, feel free to consult with us at Equal.
Stainless steel + round wood screw
This is a wood screw made by Okitsu Spiral, certified by JIS. Unlike tapping screws, about two-thirds of its total length is threaded. Since the screw threads do not engage with the material sandwiched in between, it increases the tightening force and prevents loosening and wobbling.
Stainless steel + plate wood screw
It is a screw with a flat top and a conical-shaped seating surface. It is used when you do not want the head of the screw to protrude. Wood screws do not have threads near the head, allowing for tight fastening of boards to posts or other wood materials, making them suitable for securing wood. It is necessary to chamfer the material being fastened. A pilot hole about 70% of the screw's diameter should be drilled, and then it can be tightened with a screwdriver. This is a wood screw made by Okitsu Spiral, certified by JIS. Unlike tapping screws, about two-thirds of its total length is threaded. Since the screw threads do not engage with the material sandwiched in between, the clamping force is increased, preventing backout and wobbling. It has a stronger holding power than tapping screws.
Stainless steel knurled screw with slotted head φ6×H3 degreased
This is a screw that can be tightened by hand. It has a slotted head, allowing it to be tightened using a flathead screwdriver. It is suitable for securing areas that require frequent attachment and detachment, such as covers and lids. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with slot φ8×H6 degreased
This is a screw that can be tightened by hand. It has a slotted head, allowing it to be tightened using a flathead screwdriver. It is suitable for securing areas that require frequent attachment and detachment, such as covers and lids. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with step φ6×H6 degreased
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts of outdoor equipment where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas that require angle or position adjustments. It is compliant with EU-RoHS standards.
Stainless steel knurled screw, stepped, φ6×H8, degreased.
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts of outdoor equipment where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas where angle and position adjustments are needed. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with step φ6×H10 degreased
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts of outdoor equipment where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas where angle and position adjustments are necessary. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with step φ8×H12, degreased.
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts of outdoor devices where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas that require angle or position adjustments. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with step φ8×H15 degreased
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts of outdoor equipment where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas that require angle or position adjustments. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with step φ10×H15 degreased
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts of outdoor equipment where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas where angle and position adjustments are needed. It is compliant with EU-RoHS standards.
Stainless steel knurled screw with step φ12×H10 degreased
This is a hand-tightening screw made of SUS303 material. It can be used for securing parts in outdoor devices where corrosion is a concern, and the head itself can be used as a knob. Additionally, since it is a hand-tightening screw, it is suitable for areas where angle and position adjustments are needed. It is compliant with EU-RoHS standards.
Brass Ultra Surt IV Degreasing
Suitable resin: Thermoplastic resin Usage: Hot press fitting, asymmetric knurled shape. Excellent tensile torque strength. Compliant with EU-RoHS.
Brass UltraSart IV Flanged Type Degreased
Suitable resin: Thermoplastic resin Usage: Hot press-fit asymmetric knurled shape. Excellent tensile torque strength. Compliant with EU-RoHS standards.
